The Sisters of Mercy have ordered the Narrows Senior Center out of their building by the end of the week after selling the land to an unnamed buyer on Monday.

A Brooklyn City Councilman is blasting an order of nuns for giving the boot to a Dyker Heights senior center after selling the building to an unnamed developer.

The Sisters of Mercy ordered the Narrows Senior Center to get out by the end of this week — even though they have a lease on the space through June.

“It’s insulting all around,” said Councilman Justin Brannan (D-Brooklyn). “It’s crazy. It goes completely against what the Sisters of Mercy are all about. There’s not much mercy in throwing seniors out in the cold.”

The sisters have owned the building, a former orphanage known as the Angel Guardian Home, for close to a century. They made a deal to sell it late last year, but have not revealed who the buyer is.

The senior center’s lease has a clause allowing it to be terminated early with 60 days’ notice.

"As far as I'm considered this is my place," said Helen Lombardo, 85, of Dyker Heights, one of a group of seniors hanging out at the center after a $1.25 lunch of herbed beef stew with sautéed spinach and corn muffins Monday.

"I come here all the time. The people are great here. They all get along. It's one big happy family here. It really is. I'm going to miss it. I really am."

Ralph Sangiorgio, 89, on the grounds of the Narrows Senior Center.

A protest is planned for the site Friday. Brannan wrote a letter to the Sisters of Mercy earlier this month asking them to reverse course and give the center more time, but has not heard back.

Catholic Charities, which runs the center, said it is working with the sisters to try to get an extension. A potential new site has been found nearby, but it’s unclear when they’ll be able to move there.

Locals had pushed the owners to sell the building to a developer that would build senior housing, but believe their hopes have been dashed. The project will contain “some affordable housing,” a spokeswoman for Sisters of Mercy told Brooklyn Daily at the time of the sale.

“They’ve been completely radio silent,” Brannan said. “If they wanted to sell for luxury condos or townhouses, it’s their prerogative because it’s their land...At least give us time.”

The Sisters of Mercy have owned the building for nearly a century.

(Debbie Egan-Chin/New York Daily News)

Seniors who have come to the center for years were equally in the dark, and worried some elderly patrons would not be able to make it after an eventual move.

"It's socializing with the people, making new friends, having long-term friends here. If they're thinking about moving us, we figure we'll lose a bunch of people," said Ralph Sangiorgio, an 89-year-old World War II vet who lives in Dyker Heights.

The Sisters of Mercy have ordered the Narrows Senior Center out of their building by the end of the week after selling the building to an unnamed buyer on Monday.

(Debbie Egan-Chin/New York Daily News)

The Sisters of Mercy did not respond to calls for comment.

“They have no mercy for the seniors at all. It's really a disgrace. We want to stay right where we are. The seniors don't want to leave here. It's terrible what they're doing,” said Pauline Castagna, 61.